Home / 2,770.22-4,157.75-1,539.02

Finding the Fourth Proportional to 2,770.22, 4,157.75 and 1,539.02

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Solution

The fourth proportional to 2,770.22, 4,157.75 and 1,539.02 is: 2,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.22 : 4,157.75 = 1,539.02 : x
  2. Step 2: Convert to fraction form
    2,770.22/4,157.75 = 1,539.02/x
  3. Step 3: Cross multiply
    2,770.22x = 4,157.75 × 1,539.02
  4. Step 4: Simplify right side
    2,770.22x = 6,398,839.62
  5. Step 5: Solve for x
    x = 6,398,839.62/2,770.22
  6. Step 6: Final answer
    x = 2,309.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.